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blah blah, merits to both, stock SR are high impedance but if you get low impedance you can just wire up resistors. RX-7 injectors fit the sr fuel rail more or less (550's or 850's) but they need collars, well the 550's do anyway, and 850's are just massive and you need standalone to control. Topfeeds are cheap and reliable and easy to find, easy to replace. Plus you can use a "free" mustang 4.6 fuel rail. they are pretty cheap used.
But then sidefeeds fit the stock rail, and you can keep your stock fuel hoses, and the fuel cools the injector.
I'm going topfeeds, I just sold my sidefeeds, but thats just because my ECU couldn't control the sidefeeds I had...
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